21759608

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{209227}}^1$

素因数の和:209246

約数の個数: 16

約数和(自身を含む): 43937880

約数和(自身を除く): 22178272

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 209227, 418454, 836908, 1673816, 2719951, 5439902, 10879804, 21759608]

約数ペア:

[(1, 21759608), (2, 10879804), (4, 5439902), (8, 2719951), (13, 1673816), (26, 836908), (52, 418454), (104, 209227)]